package com.sky.controller.admin;

import com.sky.constant.MessageConstant;
import com.sky.dto.DishDTO;
import com.sky.dto.DishPageQueryDTO;
import com.sky.entity.Dish;
import com.sky.result.PageResult;
import com.sky.result.Result;
import com.sky.service.DishService;
import com.sky.vo.DishVO;
import io.swagger.annotations.Api;
import io.swagger.annotations.ApiOperation;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.web.bind.annotation.*;

import java.util.Collections;
import java.util.List;
import java.util.Set;

@Api(tags = "菜品相关接口")
@Slf4j
@RestController("adminDishController")
@RequestMapping("admin/dish")
public class DishController {

    @Autowired
    private DishService dishService;
    @Autowired
    private RedisTemplate redisTemplate;

    /**
     * 新增菜品
     * @param dishDTO
     * @return
     */
    @ApiOperation("新增菜品")
    @PostMapping
    public Result save(@RequestBody DishDTO dishDTO) {
        log.info("新增菜品：{}",dishDTO);
        dishService.saveWithFlavor(dishDTO);

        //清理缓存，清理新增菜品的分类的key dish_分类id
        String key = "dish_" + dishDTO.getCategoryId();
        cleanCache(key);

        return Result.success();
    }

    /**
     * 菜品分页查询
     * @param dishPageQueryDTO
     * @return
     */
    @ApiOperation("菜品分页查询")
    @GetMapping("/page")
    public Result<PageResult> page(DishPageQueryDTO dishPageQueryDTO) {
        log.info("菜品分页查询：{}",dishPageQueryDTO);
        PageResult pageResult = dishService.pageQuery(dishPageQueryDTO);
        return Result.success(pageResult);
    }

    /**
     * 批量删除菜品
     * @param ids
     */
    @ApiOperation("批量删除菜品")
    @DeleteMapping
    public Result deleteBatch(@RequestParam List<Long> ids) {
        log.info("批量删除菜品：{}",ids);
        dishService.deteleBatch(ids);

        //清除缓存，所有以dish_开头的key
        cleanCache("dish_*");

        return Result.success();
    }

    /**
     * 根据id查询菜品
     * @param id
     * @return
     */
    @ApiOperation("根据id查询菜品")
    @GetMapping("/{id}")
    public Result<DishVO> getById(@PathVariable Long id) {
        log.info("根据id查询菜品：{}",id);
        DishVO dishVO = dishService.getByIdWithFlavor(id);
        return Result.success(dishVO);
    }

    /**
     * 修改菜品
     * @param dishDTO
     */
    @ApiOperation("修改菜品")
    @PutMapping
    public Result update(@RequestBody DishDTO dishDTO) {
        log.info("新增菜品：{}",dishDTO);
        dishService.updateWithFlavor(dishDTO);

        //清除缓存，清除所有以dish_开头的key
        cleanCache("dish_*");

        return Result.success();
    }

    @ApiOperation("根据分类id查询菜品")
    @GetMapping("/list")
    public Result<List<Dish>> getByCategoryId(Long categoryId) {
        log.info("根据分类id查询菜品:{}",categoryId);
        List<Dish> dishList = dishService.getByCategoryId(categoryId);
        return Result.success(dishList);
    }

    @PostMapping("/status/{status}")
    @ApiOperation("菜品起售停售")
    public Result startOrStop(@PathVariable Integer status, Long id) {
        log.info("菜品起售停售:{},{}",status,id);
        dishService.startOrStop(status,id);

        //清除缓存，所有以dish_开头的key
        cleanCache("dish_*");

        return Result.success();
    }

    //定义方法，清除缓存
    private void cleanCache(String pattern) {
        Set keys = redisTemplate.keys(pattern);
        redisTemplate.delete(keys);
    }

}
